Spring-wheel.



O. G. MBSSICKG: P. JEFFERSON.

SPRING WHEEL.

APPLICATION FILED APR. 25, 1912.

1,051,745. Patented Jan. 28, 1913.

OLA c. MESSICK AND FRANK JEFFERSON, or SEAFOBD, DELAWARE.

SPRING-WHEEL.

Specification of Letters Patent.

7 Patented Jan. 28, 1913.

Application filed April 25, 1912. .Serial No.- 693,269.

To all whom it may concern:

Be it known that we, OLA C. Mns'sron aINIFRANK JEFFERSON, citizen's of the United States, residing at Seaford, in the county of Sussex ,and State of Delaware, have in vented certain new and" useful Improvements in Spring-Wheels, of which the following is a specificatiomreference being had to the accompanying-drawings.

This invention comprehends certain new and useful improvements in wheels and relates more particularly to that class of wheels known as spring'wheels.-

The primary object of.the invention is to provide a wheel having an outer rim spaced fro'man inner rim and held in spaced relationship by a plurality of how and helical springs placed therebetween.

nother object of the invention is to provide a sprin wheel of simple and durable structure which shall possess a high degree of elasticity. I

The invention also aims .to generally improve spring wheels to render them more useful and commercially desirable. I

With these and other objects in view as shall become apparent as the description proceeds, the invention consists in certain constructions and arrangements of parts as we shall hereinafter fully describe and" claim.

For a full understanding of the'invention reference is to behad to the following desoription and accompanying drawing in which- I Figure 1 is a side elevation of our inven-' tion; Fig. 2 is a transverse sectional view on the line 2-2 of 1; and Fig. 3 is,a perspective view of one of the bow spr1ngs.

Similar parts are referred to in the description and designated in the accompanyin% drawing by like referencecharacters.

eferring to the drawing nuinerals 1 and 2 designate the rims of the wheel between which are positioned'the bow springs 3 and the helical springs 4. Theouterrim, 2 is provided with Ia solid tire 5 of any suitable ,material suchas rubber or leather and the inner'rim is provided with the spokes 6' and hub 7 of the usual construction found inau tomobile wheels, thlsabeing the type illus-.

trated in the drawing. The inner portions 8 of'the' bow springs 3 are bent to conform to the curvature of the inner rim 1 to which they are attached an'd'fromwhich they diverge slightly. The intermediate portions 9 of the bow springs 3 are bowed outwardly to pass diagonally between the outer and inner rims and the outer portions of the bow springs are secured to the outer rim.

It is apparent from the drawing that the.

portions 8 of .the bow springs are relatively longer than the outer portions thereof, thereby providing maximum bearing surface'for the springs, and" the diagonal arrangement of the intermediate portions 9 thereof equally distributes the shocks which are imposed upon the wheel, to the length 'of the said intermediate portions. These springsare provided near their end edges with a pluralityof transverse openings 10 adapted to engage threaded pins 11 formed integrally with and arranged in transverse alinement on the proximate faces of the outer and inner rims. Nuts 12 screw on these pins and serve to hold the springs 3 lirmly in position. Helical springs 4 are arranged in substantially radial alinement between the inner facesof the bow springs and are held therebetween by the nuts 12 engaging the ends of said springs and binding them against the faces of the bow springs. Thus it will be seen that the pins 11 and nuts 12 serve the double purpose of holding the bow springs 3 and helical springs 4 in position. 7

We are aware of the. fact that it is. old to interpose springs between the outer and inner riins of a vehicle wheel but webelieve the specific manner which we have-just described for holding the springs therebetween to be new. This arrangement makes it a very easy matter to remove these springs for any cause whatever and. substitute new ones.

In the operation of our invention any suitable number of v springs are used and they have suflicient strength to normally hold the rims concentric with one another but should any cause whatever such as an over load orjthe. striking of an obstruction tend to displace the normal arrangement-of,-

these rims the lower springs are and the upper ones expanded. Thus it be seen that there is a double action to hold the rims in their normal and also tending to return them to. sition should they become dis laced.

From the foregoing description iii connection with the accompanying drawing, it

will be seen that we have rovlded alsp wheel of simple and durable structure and F of different-styles of vehiclessuch as motoreyeles, baby carriages, etc., may be made "without departing from the scope hi. the in- @igmi a defined-by the claim.

J Ha "ng thus described'the invention, we

. nlnia spring wheelcomprising inner and outervr msiconcentrically arranged in spaced relationship the opposed faces of these rims ded respectively with outwardly and inwardly projecting threaded ins formed integrally therewith; bow springs [disposed between said rimsand having their opposite ends provided with openings to engage the said pins, spiral springs secured in position on sand pins, means for holding said springs in position on the pins, the inner nortionsof said bow springs being curved to conform to the curvature of the inner rim, said inner portions of the bow springs being relatively longer than the outer portions thereof, and the intermediate portions of said bow springs disposed diagonally be-.

tween the said inner and outer rims, as and for the purposedescribed. i

In testimony whereof We hereunto affix our signatures in the presence of two witnesses.

OLA G. M Ej SICK. FRANK JEFFERSON. Witnesses:

J ESSE .T. SHARPE, JOHN J. WURSE. 

